Control for float valves



Nov. 1o, 1925; 4 1,560,861

T. SHETKA CONTROL FOR IELOAI'I VALVES Filed May 25. 1925 Ilm Y 2 1 i i16 Il '17 15 Hi .17

j] r2 J9 gmc/nto@ I @Noam-qd Patented Nov. l0, 1925.

THOMAS SHIETKA, or sgr. PALMNSTAQ CONTROL FOR FLOT VALVES.

`Application led- May 25, 1972511. Serial N6. 32,636-,

To all whom it may a-cern:

Be it known that I, THOMAS Sierras, a citizen of the UnitedStatesresidingjat'iu Paul, in the county ofRamsey and State ofMinnesota, have invented new andasetul Improvements in Controls forFloat` Valves, of which the ollowingis a specilication.

'lhisinventionv relates to controls for ioat valves, particularly,although not` excltr sively, adapted for usewhere itA is `:necessary ordesirable lto obtain rapid filling of a-'storage tank, andsilentoperation of the valve.

Float valves of the Vtype in general Luse upon water closets are yso*constructed that in their nori'naloperation considerable time isrequired to lill the storage tank, and ob; jectional noise is producedduring the iill ing of the tank, Both oi! these undesirable featureshave resulted from construction whereby thevalve opening, duringthe-in`Y flow of water, has been gradually reduced as the waterapproaches its high level.. This throttling of the inflowing watercreates a hissing noise and isl ineiiicientbeoause the valve is onlyallowed to remain ully'opened for a small part of the time required toll the tank.

It is my Object to obviate these defects by.

providing a simple and inexpensive attachment for a ioat valve of thistype, whereby the valve is maintained open' to its maximum until thewater has risen to a predetermined level, when the valve is closed. Thisinvention also includes certain novel features of construction whichwill be more fully pointedout in the following specification and claims.f

In the accompanying dra-wings I have illustrated the best form of mydevice at pres-` ent known to me. Referring to the drawings, Figure lisa side elevation of myimproved attachment mounted upon a iioat valve ofcommon type, the storage tank being shown in vertical section;v Fig. 2is aplan view of the attachment on a somewhat enlarged scale and showinga fragmentaryv portion of the storage tank, and Fig. 3 1s a sectionthrough the attachment, taken on ther line 3 8 of Fig. 2. y

In the. drawings I have used the numeral 4 to indicate a storage tankwhich is adapted to be supplied with water through an inlet mally'i'reeend of Iaf rod. 9..'v` Anf ar-n1 10 fis rigidly secured at its lowerel'id-A tothe rod-1.9; and is slidableinfa'guideg11 formed onf-a frame12.I This frame 12 i'sarr'angedi tibe mounted in the tank ,tabove theleve'lTfd-ff On the upper extremity "of water therein. the rod isa do'g13, pivoteduponfapin 14 and arranged to normallygprojet 'substane tiallyhorizontallyat one side` of: the ernav 10; Thedogi13 isarrangedwto'engagefon end of a tiltable ,support 15ffor av we'ight'l',and is' formed'with a projeotionfberieaththe pin 14 adapted to preventdOvlr-nwardV` tiltingof the free end' of the dog. VThe support 15is'seoured by hinges 17- tothe frame'- 12 and hasta pair of downwardlyprejeoti'rg.. lugs l'adapted tov engage said frame and h'oi mally hold'thesupport-:in liorizontalposition. Projecting from one side'o-fthefraney 12 is a bracket 19* adapted tobe secured by bolts to the innersiirfaeeofmthetank 4e The weight 16 is preferably providedwith a centralpin 21y adaptedY to receive a7 series of disos22' ofy variousthicknesses. f

4These dises 22 are removable from the pi 21, so that the amount ofweight applied to the support 15 may be adjusted, as here* inafterdescribed. f

In operation, when the water is" with drawn from the tankk 4, thefloat 8fis al# lowed to 'fall and open'the valve 7,- toifthere=y byadmita'freshfsupply of water. to* the tankflf. During the emptying oiithefVtan-k,y the.

arm 10 is carried vdownwardv until-'1 the dog? 13 passes the support 15Ifor the weight/116i Now, as will be readily understoodrth float 8 isheld in depressed positinby. the dogy 13 whioh engages thefbotton ofthe'support 1-5, to thereby hold the'valvei its position of maximum'opening; The weigh-t upon the support 15 is so adjusted, by addi-ng orre-l moving` certain of the discs22, that when the vlevel of" waterY hasrisen to substantially its maximum inf theitank, the Jforce applied bythe float 8 .bec`o`mes suiiicientto raisefthe weight-16. i 'llhLlSfivwhen; the-tank has been filled to a predetermined level, the weight 16is tilted to approximately the position shown in dotted lines in Figure1, and the arm 10 is freed, so that the float rises to the positionshown in dotted lines in Figure 1. lVhen the tank is again emptied, thedog 13 is free to pass the support l15 during the downward movement ofthe arm 10. During the filling of the tank 4 the valve 7 is alwaysmaintained in its open position, so

so i

k tuted for the single weightshown.

Having describedv my rinvention a what I claimas new and desire toprotectiby Let-v ters Patent is:

' 1. The combination with a storage tank for liquid having a valvedinlet pipe and a float adapted to control said Valve, of means formaintaining said valve open to substantially its maximum during theyfilling of said tank comprising, an arm connected to said float andprojecting above the same, mechanism supported in said tank adjacent tosaid arm adapted to exert downward pressure suiicient to substantiallysubmerge said float and means for operatively connecting said arm tosaid mechanism adapted to be released from saidmechanism when the liquidhas risen to substantially its maximum level in the tank.

v 2. The combination with a storage tank for liquid having a valvedinlet pipe and a lioat adapted to control said valve, of means formaintaining said valve open to substantially its maximum during thefilling of said tank comprising, anv arm connected to said float andprojecting above the same, a weight supported in said tank adjacent tosaid arm, said weight being adapted to exert pressure sufficient tosubstantially submerge said float, and means for operatively connectingsaid arm to said weight adapted to be re'leasedirom saidmechanismwhenthe liquid has risen to substantially its maximum level in the tank.5

3.' In an attachment for a storage tank for liquid having a valved inletpipe adapted to be controlled by a float, a support arranged to bemounted within said tank, an arm adapted to be connected to said floatandinovable adjacent to said support, means adapted to operativelyconnect said arm and support when said float is in a depressed position,and means on said support adapted to maintain said float in depressedposition weight may be raised by the float when` moved upward, and a.weight onsaid support' adapted to maintain said iloat in depressedposition until the water in said tank reaches a predetermined leveltherein.

5. The combination with a storage'tank for liquid having an inlet pipeand a valve on said pipe adapted normally to maintain water at apredetermined level in said tank, said valve being provided with aiioat, an arm projecting above said float and operatively connectedtherewith, a member extending adjacent to said arm and pivotallysupported at one end in said tank, the free end of said member beingadapted to engage said arm when the float is in a depressed position andmeans adapted to exert downward pressure'on said member sufcient tomaintain said member in substantially horizontal position whereby saidiioat is maintained in depressed position upon emptying of the tankuntil the water has risen therein substantially to said predeterminedlevel.

6. The combination with a storage tank for liquid having an inlet pipeand a valve on said pipe adapted normally to maintain water at apredetermined level in said tank, said valve being provided with afloat, an arm projecting above said float and operatively connectedtherewith, a member extending adjacent to said arm and pivotallysupported at one end in said tank, the free end of said member beingadapted to engage said arm when the iioat is in a depressed positionanda weight supported by said member adapted to maintain said armdepressed, whereby said float is maintained in depressed position uponemptying of the tank and until the water has risen therein substantiallyto saidr predetermined level.

In testimony whereof, I have hereunto signed my name to thisspeciiication.

THoMAs sHETKi-i.

